Syslinux - May 2003 - ppmtolss16 fix

Hi!
using ppmtolss16 tool from syslinux-2.04 with an input .pnm file
created with gimp 1.2.3, I bumbed into the following error:

[root at azur syslinux-2.04]# ./ppmtolss16 < /home/sr/try.pnm > /tmp/t
./ppmtolss16: Input format error 1
[root at azur syslinux-2.04]#

The problem is that gimp adds the comment
# CREATOR: The GIMP's PNM Filter Version 1.0
at 2nd line.

Suggested fix for ppmtolss16:

108a109,110
 > # gobble any comment
 > while ( $sizes =~ /^#/) { $sizes = <STDIN>;}

cheers,
Stephane

Hello,

I discovered problems with ppmtolss16 when creating ppm files with gimp or 
xv. When examinig the created files with "vim -b splash.ppm" I
detected
one or more comment lines after line "P6".
After stripping the comments out of splash.ppm I was able to convert the 
file with ppmtolss16.
It's possible to have multiple comment lines because multiple savings with 
different programs (gimp, xv etc) can cause multiple comment lines after 
line "P6".
I don't know perl (of course I prefer python ;-) ) but I patched 
ppmtolss16 to strip all comment lines.

Then I subscribed the list and discovered, that Stephane Rouberol did a 
equal patch which still DOESN'T seem to be INCLUDED in ppmtolss16.
(ppmtolss16 of syslinux 2.0.5 does also fail and doesn't seem to have this 
patch.)

See also http://129.26.180.1/~frank/dvd/

ciaou,
Frank

On Mon, 5 May 2003, Stephane Rouberol cum veritate scripsit :
[...]
> ./ppmtolss16: Input format error 1
> 
> The problem is that gimp adds the comment
> # CREATOR: The GIMP's PNM Filter Version 1.0
> at 2nd line.
> Suggested fix for ppmtolss16:
> 
> 108a109,110
>  > # gobble any comment
>  > while ( $sizes =~ /^#/) { $sizes = <STDIN>;}
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